Fluid atomizer



C. STRACHAN ET AL FLUID ATOMIZER May 5, 1925. 1,536,982

Filed DeC. 23, 1922 Patented May 5., 1925.-

, l i 1,536,982" UNITED, sTATEs lRaTsNAIT oFF-ics. y

CHRISTOPHER STRAGHAN, SOUTH ORANGE, NEW JERSEY, AND DAVIDJ. IRISH, 0F ST. GEORGE, STATEN. ISLAND, NEW YORK, A-SSIGNORS TO kMOlEtSIlDRY DOCK &

REPAIR oo., on NEW Yonx,i\. Y., A CORPORATION or NEW YORK.

FLUID ATO'MTZER.

Application filed vDecemlcier 1922. SveraifNo. 608,704.

To all whom t may concern:

Be `it known 'that we, Cnnisfrornnn STRACHAN and DAVID J. IRISH, citizensfof the United States, residing at South 'Orange and St. George, Staten Island, respectively,

in the counties of Essex and Richmond and States of New Jerseyfand `New Yorlgre-k spectively, have invented certainfnew and" useful Improvements in Fluid Atomizers, of which the following is a specification, referencebeing had therein tothe accompanying drawing.

Our invention relates to improvements in of oil sprayed maybe regulated, withoutrvarying the oil pressure or temperature and without materially changing the vshape of the cone spray and which will have a se# ries of fixed capacities so that` extreme care` will not be required in adjusting the de-` vice tol obtain the desired capacity.

In carryingout the present formof the inventiomwe make use ofvapreferably conical, tangentially ported member in the front end of a tubular body, a portedvalve sleeve surrounding said ported member, and an operating stem" inserted through the rear end ofthe body and connected, with the valve r4sleeve for turning the same to control the discharge of fluid, a further object `being to provide a swivel `connection between said ported member 4and the valve sleeve, whereby they may kbebodily removed as a single unitl from tliefrontlend Yof the tubularbody, whenever repairsr or cleaning are"ne`cessary, this .swivel u connection also insuring constant engagement `of the' valve sleeve and ported `member under varying conditions of expansion andcontraction. Y

With the foregoing in view, the invention resides Jin the novel subjectI matterl herein` after v`described 'and claimed, 'the description being ysupplemented by the .accompanying drawing.'

Figure .l is a llongitudinal sectional view partly in elevation." I

'valve sleeve.

' set.

Figure 2 is an enlarged sectional'view i through the front end of the atomizer.

v Figure 3 is avertical transverse sectional view as indicated -by Kline* of Fig, 2, y

Aillustrating the .nearest point l which the valve sleeve approaches tov a completely closed position.

" Figurev 5 -is a rear end elevation of the conical member which is removably held in the frontend of the tubular body.

Figure G is a rear In the drawings abovev briefly'described, illustrating one form of the invention, the

numeral I designatesa tubular body havs` ingv a fiuid inlet 2 at its rear end and `also y provided at this end withA an appropriate stuffing box 3 through which an operating stein 4 isinserted, said. stem having an operating handle 5 provided with a` pointer 6 which (2o-operates with a number of indi-y yend elevation of the tioy cators on the body, one of which is indicated. f

at 7 lin Figi. The number of these indicators will of course correspond to the number ofv positions at which the valve mechanism at the front end of the burner, may be A head is providedfor the front end of the tubular bodyl, said head being pro vided with a'peripherally circular rear end extendinginto said body 1. This/head is preferably formed of front and rear seetions 8 and 9 respectively. The section 9 is shown in the 4form of a rearwardly 'tapered eonehaving a dat front face l() and provided with a peripheralrib 11, this rib beA ing disposed in Contact with lthe front extremity of the body l. `To prevent the cone p 9 from rotating, we prefer to flatten a peripheral yportion ofits rib 1I, as indicated at l2, the front end of the body -1 being provided with a lip 13 `contacting with said flattened ribportion, -as shown clearly in Fig. 2.

" Inthe present showing, the 'head section head 8-9 is provided betweeny its endswithv a mixing chamber, and in the present showing, the aforesaid Hat rear side of the cap 8 is provided with a conical recess 14 to form said chamber. This recess communicates with a discharge orilice 15 openinfr through the il'ront side of the head, which side is preferably of concave form as indicated at 16. In the recess 1l, the l'luid is whirled by at least one and usually a plurality et pret'- erably tangential ports with which the rear portion of the head is provided. These ports in the construction shown, have their rear ends opening through the periphery ot the cone 9 while their front ends open through the front surface 10 of said cone in vcommunication with the recess 111. ie have shown an inner series of these ports, indicated by the reference numerals 17, and an outer series designated by the numerals 19, the port-s ot each series being circumterentially spaced as shown in Figs. 3, d and 5.

A valve sleeve 19 shown of truste-conical form, surrounds and contacts with the peripheral portion of the cone 9, this sleeve having a slidable driving connection with the stem 4. Preferably, the sleeve 19 has a tlatesided socket 2O at its rear end which slidably receives the similarly shaped front end otthe'stem el, so that rotation of this stein will turn the sleeve 19, yet said sleeve may be removed from the stem by moving it forwardly out of the tubular body 1, when the cap 8 is'removed.

The sleeve 19 in the construction shown, is provided with an inner series of circumferentially spaced ports designated at 21, 22 and 23 respectively and is is also formed with an outer series of ports 2e. 25 and 2G. The inner ports 21, 22 and 23 eo-operate with the inner tangential ports l? ot the cone 9 and said ports 21, 22 and 23 have their circmnt'erential dimensions successively increased, the port 21 being the smaller of the series, while port 23 is the longer. The same is true ot the ports 21. 25 and 2G, port 2l heilig of greater length than the longest port 23 ot the inner series. while port is longer than port 2l, and the port 2G is the longest ot the series.

By the arrangement of ports above described. when the sleeve 19 is at the nearest point which it approaches to a completely closed position, port 2G is in coniinunication with one ot the outermost ports 18, so that some tluid'will he discharged constantly Jfrom the atomizer. lVhen the invention is used for a burner, a pilot light is thus insured at all times, By turning` the handle 5 to the differentindicators 7, the ports ot the cone 9 may be successively opened until discharge olE tluid is taking place through all oit said ports or the device may be so set that fluid will be discharged only7 from any desired number ot ports, as occasion may require. Whether one port of t-he cone 9 is in operation, or more ports are in play, the fluid discharged therefrom will be whirled around in the recess 1li and will discharge through the orilice l5 in the form olf a spray which takes the shape ot a hollow cone, with the advantaggjes well known to the art.

l.Vhenever it is i'ieccssary to disasscmble the burner tor cleaning, the cap S is nnthreaded and the parts at the front end ot' the tubular body 1 n'iay be easily removed. li desired, the stem Ll may then be withdrawn through the stutting box 3, but this is usually mmecessary. The socket 29 will withdraw trom the t'ront end ot the stem when the sleeve 19 is removed and in order that this sleeve may be bodily removed with the head 8 9 and may at all times remain in proper operative contact with the cone 9, without the necessity ot usinga spring device tor forcing it forwardly, we swivel the sleeve 19 to the atoresaid head. ille prefer to provide the cone 9 with a circumferential ggrooif'e 2T into which the trent end of the sleeve 19 is spun or otheiavise turned, as indicated at By thus swivelin :i` the sleeve 19 upon the cone 9, they cannot become displaced with respect to each other when the burner is disassembled tor cleaning purposes or repairing` and furthermore, disassemhling and assembling oil the device is expedited by this arrangement,I as "i devices to hold the sleeve 19 in proper operative contact with the cone 9. 4.filso attention may be directed to the Yfact that ly swiveling the sleeve 19 upon the cone 9, there is no possibility ot said sleeve and cone separating from each other in case the tubular body 1 and the stem Ll should not uniformly expand and contract. lllhenever such nonunit'orm expansion or contraction occurs, the sliding connection between the stem l and the sleeve 19, permits slight sliding of the sleeve with respect to the stein. and ohvionsly the sleeve will move bodily with the cone.

ln operation. it will be understood that the tubular body of the device projects throiurh a suitable air register at the trent ot the t'urnace and that when the handle is turned to its limit ot movement in one directien. but a single oil iriassage or port will be ogen to supply just enough oil to keep the burner in operation. Then it. is desired to increase the. capacity, the handle is turned in the other direct-ion one or more points until the proper flow of oil is reached to give the desired sized tlame. Then the limit ot movement of the handle in that direction is reached, all siX oil ports will be opened. lt will theretore be seen that a plurality of fixed cz pacities for the burner are provided and no great skill or care on the part of the operator is necessary to obtain the desired capacity,

As excellent results may be obtained :trom

well as permitting the elimination ot snrinpif desired. It is to be understood however that within the scope of the invention as claimed, modifications may be made.

We claim: *V f l.v An atomizer comprising a tubular body having a fluid inlet, ahead for the front end of said body provided with a rearwardly proiecting peripherally circular rear end, said head having a chamber between its ends, an outlet orifice from ythe front endl of said chamberl and tangential port's'lead ing to lsaid kchamber from circumferentially spaced points on the periphery of said rear end, a valve member within said tubular body havingan annular portion surrounding said peripherally circular rear end of said head and contacting with the peripheral surface thereof, said annular portion of said valve member having ports from its outer to its inner side adapted `for registration with said tangential ports, swivelforming means connecting said annular portion of the valve member directly with the peripheral portion of said rear end of said head and holding said ann-ular portionv and head against relative axial movement, and a stem'extending into the aforesaid tubular body and operatively connected with said valve member for rotating the latter.

2. vAn atomizer comprising a tubular body i having a fluid inlet, a head for the front end of said body provided with a conical rear end, said head having a chamber between its ends, an outlet orifice fromp'the front end of said chamber and tangential ports leading to said chamber from circumferentially spaced points on the periphery of said conical rear end, the latter being formed with a peripheralgroove in front of said tangential ports, a valve `sleeve surrounding said conical rear Hend of said head `and contacting with the peripheral surface thereof, said valve sleeve'having its front end turned into the aforesaid peripheral. groove to swivel the sleeve upon lthe head, said sleeve being formed with ports from its outer to .its inner side equal in number ,to and adapted for registration withisaid tangential ports, said ports of the sleeve suc` cessively increasing vin their circumferen tial dimensions, and a stem extending into the aforesaid tubularbody and operatively connected with the valve sleeve for rotating the latter. n f

3. An atomizer comprising a tubular body e having a iiuid inlet, a head for the front end of said body provided with a rearwardly projecting' peripherally circular rear end, said head `having Va chamber between its ends', an outlet orifice from the front end of said chamber and at least one port leading to said chamber from the periphery of said rear end, a vvalve member havingan annular portion surrounding said rear end of said head and contacting with the peripheral surface thereof, said annular portion of said valve member having at least oneport from its outer to its inner side to register with the lfirst named port, swivel-forming means connecting said annular portion of said valve ,memberA directlywith the pe` ripheral portion of said rear .end of said head and holding the sleeve and head against relative axial movement, and a stem extending into the aforesaid tubular body and operatively connected with the valve sleeve fory rotating the latter. y 4. An atomizer comprising a tubular body having al fluid inlet, a head for the front end of said body provided with a rearwardly projecting peripherally circular rear end, said head having a chamber between its ends, an outletforifice from the'front end of said chamber and at least one port leading to said chamber from the periphery of said rear end, a valve member having an annular. portion surrounding said rear end of said head and contacting kwith 'the peripheral surface thereof, said annular portion of said valve member having at least one port from its outer to its inner side to register with the first named port, swivel-forming means extraneous to the aforesaid chamber and connecting said valve member with said head to prevent relative axial movement ofv said valve member and head, and a stem extending into the aforesaid tubular body and operatively `connected with the valve sleeve for rotating the latter. l y

In testimony whereof we hereunto affix our signature Q i CHRISTOPHER STRACHAN.

DAVID J. IRISH. 

